■ Sludge drying/ Drying of sticky and adhesive materials that no other company can deal with. International Patented Technology

 

No matter how sticky, adhesive and viscous the material is, KENKI DRYER of International Patent can dry it without clogging inside of dryer and with stable operation that no operational trouble occurs because of its unique mechanism.
Sludge after dehydration process of waste water treatment is often affected by flocculants and forms large lumps, and it frequently happen that only surface is dried but inside are not when sludge is discharged as large lumps.
In the drying process of KENKI DRYER certificated as International Patent, the material to be dried are moved forward into the dryer’s main body smoothly by being heated and crashed with a feeder at inlet. The materials get smaller and smaller since they are continuously sheared and agitated during being conveyed and heated. As the material get small, heat reaches to inside more smoothly and surely, and quality of outputs becomes stable.
Since KENKI DRYER has simple structure, initial cost is low and is estimated to be repaid with cost of industrial waste disposal for about 2 -3 years. Also, even heat source of drying is only saturated steam, epochal mechanism based on combined use of conductive heat transfer method and heated air method helps to achieve high quality of safety and hygiene, and running cost can be kept low by using surplus steam within factory. Machine operation is easy and there is no need to assign operators because it is continuous operating system. Since number of replacement parts is small, maintenance is easy and maintenance cost is very low.
Because of low-temperature drying, components of the material to be dried are hardly changed and organic sludge can be sold as fuel, fertilizer, etc. after being dried. Because the low-temperature drying does not use fire, temperature of the dryer’s outer surface is low and the dryer is safe and hygienic. Because fresh air from outside is cut off, temperature inside of the dryer is kept high, amount of moisture in the exhaust air discharging water is small, and the discharged water can be returned to wastewater treatment facilities. 

Patented : 2 domestic patents, 2 oversea countries / Patent applied for : 5 over sea countries, 1 state. (as of 10th April. 2018)

 

■ Drying of strongly sticky and adhesive organic sludge

 

 

■ Sludge dryer / Comparison of products


1. Comparison with hot air dryer

Type of DRYER KENKI DRYER Hot air dryer
Heat source Steam  Hot air
Temperature of heat source

Adjusted to installation condition
From 100℃ to 165℃

Very high temperature
Need to prevent to adhere inside of dryer
Condition of the materials after drying

There is no uneven burning and scorch

There is  uneven burning and scorch 
Dust collector Not necessary Necessary 
Fuel cost Cheap Expensive 
Frequency of parts replacement Low High 
Drying of sticky and adhesive materials
Initial cost
Running cost
Maintenance cost

 

2. Comparison with indirect dryer using steam

Type of Dryer KENKI
DRYER
Vacuum Drum Disk Paddle Inner tube
Operation Continuous Batch Continuous Continuous Continuous
Amount of water evaporation ×
Drying of sticky and adhesive materials
 Initial cost

 



Exhaust air and water treatment 5.1.2018

 



Drying of liquid flocculant

 

Global patents

 

Heat source, Steam